How can i add an glass objet to an motion tracked scene with proper light coming through it?
You can either create an HDRI with a smartphone or a 3d camera for best results. That would give you a good base to work with when it comes to lighting.

Tutorial on how to make an HDRI

Another option would be to have a look at the scene you are tracking (if it is a video you took) and try to replicate the lighting according to it. That could involve setting up a 'sun' light object, or multiple area lights.

Tutorial that helps with recreating studio lighting for artistic renders, for example

Tutorial for helping you set up an HDRI if needed, starting from 14:29